Prime Numbers>>Teaches students the definitions of factor and prime. Shows the student how to use Erastosthenes’ Sieve to find all the primes from 1 to 100.http: //lexington1.net/technology/instruct/ppts...

Fractions IV>>Teaches equivalent fractions and how to find them. Many models of equivalent fractions given.http: //lexington1.net/technology/instruct/ppts...

Mean, Median, Mode>>Teaches the definitions of mean, median, mode and range and how to find each in a given set of numbers.http: //lexington1.net/technology/instruct/ppts...

Division Trouble>>Teaches how to divide large numbers such as 2 digits into 4 digits and also teaches the shortcut of covering the last number in your divisor and dividend in order to come up with a good estimate for the number in the quotient.http: //lexington1.net/technology/instruct/ppts...